Island



FFICE.

PORTER A. GLAIVIN, OF NORTH PROVIDENCE, Ill-IODE ISLAND.

SASH-FASTENER.

Specification of Letters Patent No. 30,218, dated'October 2, 1860.

To all whom t may concern:

Be it known that I, PORTER A. GLADWIN, of North Providence, in the Stateof Rhode Island, have invented a. new and Improved indow Stop andFastener, which is fully described in the following specification,reference being had to the accompanying drawings and to the letters ofreference marked thereon.

Figure l represents a vertical section of the stop and fastener placedin the sash in the window frame A in a position where the stop acts, thesash being partly raised; B B the sash; p r r r a recess cut in thestile B', to receive the stop and fastener; s s s s a mortise throughthe stile B in which the lever C moves; t, t, t, t, a recess in whichthe spiral spring E is placed; C the lever turning on the pivot g; m thepart of the lever to which the linger is applied; le the part which actson the locker and serves as the stop; D the locker', with a catch j atthe lower part the lever passing through a mortise 7L (Fig. 2), in theupper part; j the pin seen at Fig. 5 against which the locker rests whenthe catch j is in the notch c cut in the frame A to receive it; i is apin on the back of the locker around which the spring E encircles.

Fig. 2 is a perspective view of the locker.

' Fig. 3 is a perspective view of the lever C, the part /c being broadand forming part of a circle; Z the aperture through which the pin C,Fig. 4, passes, seen also at g in Fig'. l.

\ In Fig. 5, F is the pin passing through the stile seen at f in Fig. l,which aids in keeping the locker in its place.

The nature of my improvement consists in constructing the stop as a partof the lever the whole constituting one piece and in the combination ofthe lever locker and spring constructed, arranged and operating asdescribed.

The construction and arrangement of my improved stop and fastener hasalready been described or is exhibited in the drawings. Its operation isas follows. 7hen the window is closed, the catch 7' (Fig. l) is in thenotch forcing the catch outward and keeping it in its place. To removethe catch' so that the window may be raised the finger is applied to thelever C at m forcing that part of the lever upward and the part /t'downward, the latter moving gradually down over the face of the locker.This forces back the upper end 7L of the locker D, that part of thelocker from 7L to the pin z' constituting a lever of the third kindhaving its fulcrum at the pin z' the force being applied on the face ofthe locker by the extremity of the curved part 7c of the lever C. Thenthe upper end of the locker is brought back against the point p, thewhole locker becomes a lever having its fulcrum at p, the force beingapplied by the part la of the lever C, which still descending over theface of the locker forces back the spring E and draws the catch y' outof the notch n. As soon as this is completely done the window sash canbe raised. Raising the sash just enough to -prevent the catch j againentering the notch n the finger may be removed from the end m of thelever' C and the sash may be raised to any desired height. The spring Ewhen the linger is removed from m forces out the upper part of thelocker carrying with it the curved part 7c of the lever C against thejamb. 7c being circular in form and moving eccentrically upon the pivotg, the weight of the window sash forces it upward and binds the sash sothat it cannot fall the heavier the the sash the linger is applied tothe lever C at m and the part 7c is withdrawn from against the jamb Ainto the recess p r r r which is suiiiciently deep to receive it and thecatch j being at the same time drawn within the recess nothing impedesthe descent of the sash. Then the sash reaches the bottom of the windowframe the catch y' enters the notch n and fastens the window.

I do not claim the locker provided with a catch nor the spiral springnor a lever generally by which the catch is operated all n, the spring Eacting through the pin 'a' l of which have been known and used in avariety of forms. The combination generally of a locker, lever andspiral spring I d0 not claim.

What I claim as my invention and desire to secure by Letters Patent sl.A lever with a curved end if: or its equivalent moving eccentrica-Hy ona pvot, constructed and operating substantially as described for thepurposes specified.

2. The combination of such a lever With a locker and spiral spring ortheir equivalents constructed, arranged, and Operating substantially asdescribed for the purposes specfed.

PORTER A. GLADVVIN. lVtnesses BENJN WHITE, JosEPH L. PITMAN.

